Cancer incidence and treatment utilization patterns at a regional cancer center in Tanzania from 2008-2016: Initial report of 2,772 cases

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Cancer incidence and treatment utilization patterns at a regional cancer center in Tanzania from 2008-2016: Initial report of 2,772 cases

JournalCancer Epidemiology
Publication date – Jul – 2020
Authors – Adam C Olson , Franco Afyusisye , Joe Egger , David Noyd , Beda Likonda , Nestory Masalu , Gita Suneja , Nelson Chao , Leah L Zullig , Kristin Schroeder
KeywordsCancer; Registry; Tanzania
Open access – Yes
SpecialitySurgical oncology
World region Eastern Africa
Country: Tanzania
Language – English
Submitted to the One Surgery Index on July 19, 2020 at 2:16 pm
Abstract:

Purpose: To describe cancer incidence and treatment utilization patterns at the regional cancer referral center for the Lake Zone of northwestern Tanzania from 2008 to 2016.

Methods: This descriptive, retrospective study reviewed all cancer cases recorded in the Bugando Cancer Registry (BCR), a clinical and pathology based registry at the only cancer referral hospital in the region. Primary tumor site, method of diagnosis, HIV status, and cancer treatment were reported. Using census data, the 2012 GLOBOCAN estimates for Tanzania were scaled to the Lake Zone and adjusted for 2016 population growth. These estimates were then compared to BCR cases using one-sample tests of proportion.

Results: A total of 2772 cases were reported from 2008-2016. Among these, the majority of cases (82.5 %, n = 2286) were diagnosed among adults. Most cases (85 %, n = 1923) were diagnosed by histology or cytology. Among adults, the most common cancers diagnosed were cervix (22.7 %, n=520), breast (12.6 %, n=288), and prostate (8.5 %, n=195). Among children, the most common cancers were non-Burkitt non-Hodgkin lymphoma (17.3 %, n=84), Burkitt lymphoma (16.5 %, n=80), and Wilms tumor (14.6 %, n=71). The 1116 BCR cases represent 12.2 % of the 9165 expected number of cancer cases for the Lake Zone (p < 0.001). 1494 cases (53.9 %) received some form of treatment – surgery, chemotherapy, radiation, or hormone therapy – while 1278 cases (46.1 %) had no treatment recorded.

Conclusions: This comprehensive report of the BCR reveals cancer epidemiology and treatment utilization patterns typical of hospitals in low-resource settings. Despite being the only cancer center in the Lake Zone, BMC evaluates a small percentage of the expected number of cancer patients for the region. The BCR remains an important resource to guide clinical care and academic activities for the Lake Zone.

OSI Number – 20587
PMID – 32653779

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